In:
Acta Crystallographica Section C Structural Chemistry, International Union of Crystallography (IUCr), Vol. 76, No. 8 ( 2020-08-01), p. 741-745
Abstract:
MgCO 3 ·MgCl 2 ·7H 2 O is the only known neutral magnesium carbonate containing chloride ions at ambient conditions. According to the literature, only small and twinned crystals of this double salt could be synthesised in a concentrated solution of MgCl 2 . For the crystal structure solution, single-crystal diffraction was carried out at a synchrotron radiation source. The monoclinic crystal structure (space group Cc ) exhibits double chains of MgO octahedra linked by corners, connected by carbonate units and water molecules. The chloride ions are positioned between these double chains parallel to the (100) plane. Dry MgCO 3 ·MgCl 2 ·7H 2 O decomposes in the air to chlorartinite, Mg 2 (OH)Cl(CO 3 )· n H 2 O ( n = 2 or 3). This work includes an extensive characterization of the title compound by powder X-ray diffraction, thermal analysis, SEM and vibrational spectroscopy.
Type of Medium:
Online Resource
ISSN:
2053-2296
DOI:
10.1107/S2053229620008153
DOI:
10.1107/S2053229620008153/uk3196sup1.cif
DOI:
10.1107/S2053229620008153/uk3196Isup2.hkl
DOI:
10.1107/S2053229620008153/uk3196Isup3.cml
Language:
Unknown
Publisher:
International Union of Crystallography (IUCr)
Publication Date:
2020
detail.hit.zdb_id:
2025703-X